The sentencing of a young man in the American Midwest to more than a decade behind bars has quietly become a reference point in one of the most difficult questions facing law enforcement today: what happens when criminals treat artificial intelligence as a co conspirator, and the machine’s memory later helps convict them.
Deron Lewis-Payne, 23, of Omaha, Nebraska, was sentenced on 13 August 2026 to 121 months, slightly over ten years, in federal prison after robbing a bank at gunpoint. According to the United States Attorney’s Office for the District of Nebraska, District Judge Robert F. Rossiter Jr. imposed 37 months for bank robbery and a further 84 months for brandishing a firearm during a crime of violence, to be served consecutively, followed by five years of supervised release. There is no parole in the federal system.
What set the case apart was not the robbery itself but how it was planned. Prosecutors said that after Lewis-Payne consented to a search of his phone, investigators found that he had used ChatGPT, the popular chatbot developed by OpenAI, to prepare for the crime. According to the Justice Department, his queries included questions about law enforcement response times, how to service the handgun he carried, and how to obtain ammunition despite being a convicted felon. His Google Maps history showed he had searched for directions to the bank he later robbed.
The robbery took place on 10 February 2026, when Lewis-Payne entered i3Bank in Omaha with a semi automatic handgun and threatened two tellers with death if they did not comply. He fled with about 9,175 dollars, of which investigators later recovered 2,397 dollars. The weapon was never found. He was identified through bank surveillance that captured his unmasked face and distinctive clothing, and residential cameras that recorded his vehicle. The case was investigated by the Federal Bureau of Investigation.
The significance of the Omaha conviction lies in the trend it illustrates. Across 2025 and 2026, chatbot conversations have surfaced in a series of serious criminal investigations, turning private queries into prosecutorial evidence.
The attorney general of Florida, James Uthmeier, said the suspect in the April 2025 shooting at Florida State University, which killed two people, had been in constant communication with ChatGPT before the attack, and launched a criminal investigation into OpenAI’s role. Federal authorities have said the suspect in the 2025 Palm Springs fertility clinic bombing allegedly used a generative AI chatbot to research explosives and detonation methods. Investigators similarly linked generative AI research to the January 2025 explosion of a vehicle outside a hotel in Las Vegas. In South Korea, police reported that a woman consulted ChatGPT before poisoning three men.
OpenAI has consistently distanced its product from such crimes. Responding to the Florida case, the company said ChatGPT was not responsible for the attack, adding that the information its chatbot provided could be found broadly across public sources on the internet and that it did not encourage or promote illegal activity.
The cases have also opened a new front in criminal procedure. Legal analysts note that a District of Maine court issued what is believed to be the first known federal search warrant seeking user data from OpenAI, and that a separate court order in 2025 required the company to preserve user chats, including deleted ones. The result is that conversations users may assume are private are increasingly retrievable, and admissible.
The Omaha story reads as a distant American courtroom drama, but its underlying lesson is directly relevant to Nigeria, where criminal use of artificial intelligence is already documented and rising.
According to INTERPOL’s African Cyberthreat Assessment Report 2026, released on 3 August 2026, artificial intelligence now enables about 55 per cent of reported cybercrimes across the continent. The report said losses more than doubled in a single reporting cycle, from 192 million dollars in 2024 to 484 million dollars in 2025, while the number of identified victims rose from 35,000 to 87,000. Deepfake driven sextortion alone produced roughly 600,000 detections across Africa in 2025.
Nigeria sits at the centre of that landscape. The Securities and Exchange Commission warned in September 2025 that fraudsters were using deepfake videos and AI generated content, including fabricated celebrity and political endorsements, to lure investors into unregistered platforms. Data from the Nigeria Inter Bank Settlement System put digital payment fraud at 25.85 billion naira in 2025, lower than the 52.26 billion naira recorded in 2024, even as security researchers warned that AI assisted phishing and impersonation were expected to intensify sharply through 2026. In response, the Central Bank of Nigeria issued updated anti money laundering standards in March 2026 requiring banks and fintechs to deploy automated, machine learning based monitoring systems.
Nigerian law enforcement has recorded the human scale of the problem. The Economic and Financial Crimes Commission’s raid on the Big Leaf Building in Lagos netted 792 suspects, including 193 foreign nationals, in an operation targeting romance and cryptocurrency scams aimed at victims abroad. Analysts have noted that the country’s traditional advance fee fraud, long identifiable by clumsy grammar, is being replaced by polished, AI produced correspondence that is far harder for ordinary users to detect.
What remains unsettled, in Abuja as in Washington, is where responsibility lies. Technology companies argue that their tools reproduce information already available online and cannot be blamed for how individuals misuse them. Victims, prosecutors and some lawmakers counter that the ease, speed and scale these tools provide amount to meaningful assistance to offenders.
For now, the courts are supplying a partial answer. As the Omaha case shows, the same systems that criminals turn to for help are increasingly capable of testifying against them.